UML guide is now moved to wiki at https://wiki.gentoo.org/wiki/User-mode_Linux/System_testing_with_UML
Mark virtual mailhosting document as obsolete, refer to https://wiki.gentoo.org/wiki/Complete_Virtual_Mail_Server
LVM2 now obsolete, refer to https://wiki.gentoo.org/wiki/LVM
ALSA now only on wiki, see https://wiki.gentoo.org/wiki/ALSA
Fix bug #445186 - Link to global and local use flags, thanks to Francesco Turco for reporting and providing the easy fix
Moved zsh guide to https://wiki.gentoo.org/wiki/Zsh/HOWTO
Add link to Gentoo wiki as our documents are being moved to the wiki itself
Document is moved to https://wiki.gentoo.org/wiki/GCC_optimization
xorg-config is now at https://wiki.gentoo.org/wiki/Xorg/Configuration
Fix bug #452414 - GHC does not need to be rebuild after GCC upgrade anymore
Distcc guide is now at https://wiki.gentoo.org/wiki/Distcc
Udev now links to https://wiki.gentoo.org/wiki/Udev
UTF-8 guide is now at https://wiki.gentoo.org/wiki/UTF-8
UTF-8 guide is now at https://wiki.gentoo.org/wiki/UTF-8
Keychain guide is now at https://wiki.gentoo.org/wiki/Keychain
Fix bug #466514 - Use "install" instead of "unpack" for Portage snapshot now that emerge-webrsync is used
metadoc update